Calculating machine



April 21, 1925. r 1,534,242

' I v. J. ODHNER CALCULATING MACHINE Fi ld Nov. 2, 1922 s Sheets-Sheet 1 April 21; 1925. 1,534,242

i V. J. ODHNER I CALCULATING MACHINE Filed Nov. 2, 1922 3 Sheets-Sheet 2 April 21,1925. 1,534,242

V, J. ODHNER CALCULATING MACHINE Filed Nov. 2, 1922 5 Sheets-Sheet 5 k i advzer' Patented Apr. 21, 1925.

oiirsn s assign VALENTIN JAKOIB ODHNER, OF STOCKI-IGLIVI; S'WEZDEN'..

CALCULATING MACHINE.

Application filed November- To all 107mmz't may concern:

Be it known that I, VALENTIN Janos ODHNER, a subject of the King of Sweden, and resident of Vi-hinga'gatan 30, Stockholm, in the Kingdom of Swedemhave. invented certain new and useful Improvements in Calculating Machines, of which thefollowing is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements-in calculating machines of that class which are provided with a number of turnable calculating discs inwh-ieh are arrangedi adjustable ten.s-, hundredsisg etc. pins, which in active position by the turning of: the calculating discs catch into: the respective toothed wheel "or the like for the adjus ment of the indicating discs of the machine. In ca lou latingmachines of this class thetens-pins etc. are tlSliHOWIl brought back into inactive position by springs or the like, acting on. the pins and likewise designed to keep the pins in inactive position. By said means the bringing back o ftlie pinis exclusivelyv dependent on the spring, which of course is unreliable, because it may happen, particularly in machines which have been-used for a long time, that the springby onereason oranother is incapable of bringing batch the pin into inactive position betorcthis, during the rapid turning of the calculating discs, again is at the toothed wheel" in. qucsi tion, which thus may heunintendcdily moved. The arrangement. is especially unsuited to calculating machines of that class which are provided with two registers situated next to each other and acting with the same -calculating-discs, onaccount of the fact that one is torcedto make the diameter of the calculating discs comparatively large in order to diminish the risk of said unintended movement, so that the two toothed wheels of the'machinev next to each calculating disc with which the teeth areintended to cooperate, may be arranged at such a distance from each other, that the spring at least theoretically may be capable of bring ing back the pin into inactive position dur ing the passing between the toothed wheels.

According to this invention, the object is to eliminate said inconveniences, and the machine is provided with immovable parts,

which are provided with guides, cams or shoulders, which are intended to cooperate with the tens-pin in question for the forca, less. s mi No. 598,621.

swingable transversally to the calculating disc. Fig, 2 is a. section in larger scale on the line 22' of Fig.1.- invention-applied to a calculating machine with: tenis-pinsetc. swingable in the plane of the calculating disc. Fig. 4 isa" section in larger scale on the line 4-4 of Fig. 3. The L. igs. 5 and 6 show another embodiment Fig. 8 shows the of the invention, the parts being in: difterent positions, the embodiment being applied to acalculating machine in which the tens-pins etc. are swingalole in the plane of the calculating discs, the tens-pins etc. being combined with a known swingable shutter or the like intendedto close or liherate an opening for a star wheel during the movement of the pin. Fig. 7 is a section: in larger scale on line'7'7 ot'Fig. 5. Otthre calculating machine; only those parts are shown. which-are necessary for the explaining of the invention.

On. a shaft 2 turnably mounted. in. the frame 1 of the machine calculatingv discsof which only one is shown in the drawing are arranged next to each other as usual. Each calculating disc 3 (with the exception of theca-lcula-ting disc for the units) is provided withtwo tenshundreds etc. pins d ad ustable by known means of whlch pins one 1s intended to be active during. multiplying and adding and the other is intended to be active during division and subtraction- In order to bring the tens-pins 4 etc. into active position, so called tenstransferring arms 6 are swingablymounted in the displaceable' carriage 5 which arms act in the usual manner.. During the turning of the calculating discs-the pin l being brought into active position catches into an intermediate toothed wheel 7 and turns this one step. The intermediate wheel '7 gears into a registering wheel 8, which is fastened to anumbered disc.

Accordingto Figs. 1 and 2" each tcnspin 4 etc. swing-able transvcrsally to'the calculating disc and is acted upon as usual ill) by a spring, not shown, which tends to move the pin in the direction indicated by the arrow 9 in Fig. 2. In the carriage, a part 10 is arranged for each calculating disk, which (with the exception of the calculating disk for the units) are provided with two of the tens-pins etc. cooperating with guiding surfaces 11, 12 one of which is acting during adding and multiplying and the other of which is acting during subtraction and division. According to Fig. 2 the pin 4: is brought into active position by the transferring arm 6 and catches into the intermediate wheel 7. By the turning of the calculating discs in the direction of the arrow the pin abuts against the guiding surface 11, so that it will beforced back into the inactive position shown by the dot dashlines immediately after its having turned the toothed wheel one step. As may be seen in Fig. the part 10 is situated so that the teeth #1 in inactive position freely can pass it during the turning of the calculating discs.

In Figs. 3 and i is shown an embodiment applied to a calculating machine, which is provided with tens-pins etc. swingableon pivots 15 in the plane of the calculating discs, the cams or guiding surfaces 11, 12 of the part 10 thereby are intended to act on parts attached to the tens-pins. The pin 1-, which as usual is acted upon by a spring, is in a known way fastened to an arm 13 or the like swingable about the axis 15, which for the sake of bringing back the pin into active position is intended to be acted upon by the transferring arm 6. In the calculating disc 3 is turnably arranged at each tens pin etc. a part in the form of an arm 14 pivoted at 1 1", which is attached to the pin or to an arm 15, connected with the pin and acting as a lever. From Fig. 3 it may be seen that when the lever or arm 14: is in the full line position, that its slot 17 engages the pin 16 in such manner that the member 15 is held in the position shown in this figure, so that the pins 4.- and 13 which move with the member 15 are in the position shown. Now if the lever 1 1 is moved in a clockwise direction about its pivot 1 1 the pin 16, which is attached to the part 15, will ride toward the inner end of the slot- 17 and will thus cause the member 15 to swing about the pivot 15" and cause the pin 14: to project beyond the periphery of the disk 3. From Fig. i it may be seen that the parts i, 13, 1 and 15 lie in different planes parallel to the disk 3. According to the drawing the arm 15 is provided with a pin 16, which is movable in a groove 1? in the arm 1% When the pin 1 is in the inactive position, shown in Fig. 3 the arm 14- lies out of catching position for the part 10, but when the pin 4: by the acting of the transferring arm 6 on the arm 13 is broughtinto active position the ner-24,242.

arm 14 is swung into the position shown in Fig. 3 by dot-dashlines. After the turning one step of the intermediate wheel 7 by the pin during the turning of the calculat ing discs in the direction shown by the arrow the arm 1 labuts against the cam or shoulder surface 12, whereby the arm and the pin 4% are brought back into their inactive positions.

In the Figs. 57 is shown another embodiment of the invention applied to a culculating machine with tens-pins, which are acted upon by springs, and which are provided with arms 13 which may be acted upon by the transferring arm 6 as in Figs. 3 and i. The pin at is combined in known manner with a swingablc shutter 18 or the like, which. as usual is arranged for the shutting during the inactive position of the pin (Fig. 3) of an opening 19 in the calculating disc, the opening 19 being made for a star-wheel, not shown in the drawings, but

.which shutter by the bringing of the pin into active position is swung back from the opening, so that the star-wheel is able to be turned one step, Fig. 6. Each of the shutters 18 is provided with an arm 20, which is intended to cooperate with the cam surface 11 or 12 for the forcing back of the pin into inactive position, when it during the turning of the calculating discs, has turned the intermediate wheel 7 one step.

As may be seen from Figs. 5 and 7, the pins or arms 1 and 13 form a fork-shaped lever pivoted on the axis f and the two arms are in different parallel planes. The rm 13 carries a pin 13 which projects outwardly through the opening 19 and rides in a slot 13 in the member 18 which is pivotally mounted at 18 on one side of the disk 3. Then the parts are in the position shown in Fig. 5, the pin 4% lies within the circumference of the disk 3 and is inactive. When, however, the arm 13 is struck, the pin 1 will be moved outwardly to the position shown in Fig. 6 and then it will function to move the toothed wheel 7 one step in a manner similar to that described in connection with Figs. 1 to 1 inclusive.

The construction shown in Figs. 3, 1-, 5, 6 and 7 requires a right and left hand construction for addition and subtraction.

The arrangement, small alterations being made, may be applied to all kinds of adjustable tens pins in calculating machines of this class. The shown embodiments are only to be considered as examples for the explaining of the invention.

Having now described my invention, what- I claim as new and desire to secure by Letters Patent is:

1. A transfer mechanism for calculating machines including pin wheels, an imn'iovable shaft, adjustable tens transferring members mounted on said shaft, adustable trans fer actuating pins located in the pin wheels and brought into active position by means of said adjustable tens transferring memcooperate with said elements for forcing the pin into ina etive position after it has turned its corresponding toothed wheel one step.

2. A transfer mechanism as claimed in claim 1 in which the transfer actuating pin is movable in the plane of the pin wheel.

3. A transfer mechanism as claimed in claim 1 in which the element of each transfer actuating pin is movable relatively to the pin with which it is associated.

4. A transfer mechanism for calculating machines including pin wheels, a pin movably mounted on each wheel, a toothed wheel arranged adjacent each pin wheel, the pin in its inactive position being capable of passing by the toothed wheel without actuating the latter, an adjustable tens trans ferring member for moving the pin into a position to engage the toothed wheel when the pin wheel is actuated, stationary cam surfaces so arranged relatively toeach pin wheel and toothed wheel as to force back the pin into inactive position after it has turned the toothed wheel one step, and a numeral wheel actuated by the toothed wheel.

In witness whereof I have hereunto signed my name.

VALENTIN JAKOB ODHNER. 

